Formatting text using attributes in XML import

[steeven]

Hi!
I try to format the text (I work on a catalog) with the Elements attribute. It's great in Indesign, the possibility to embed a reference to a paragraph or character style in a XML file. I don't know why It doesn't work; the paragraph style doesn't apply on the element which contains the attributes.
A simple example:

<Root xmlns:aid="

http://ns.adobe.com/AdobeIndesign/4.0/">

<title aidstyle="h1">TEST</title>
<title aidstyle="h2">Bienvenue dans ce texte</title>
</Root>

Indesign would have to use the reference style to format the elements "title" but it doesn't work.
Anyone understand why ?
Many thanks !

Regards,
Steeven